html,body{
    padding: 0;
    margin: 0;
}
.snake{
    width: 400px;
    height: 400px;
    padding: 8px;
    margin: 100px auto 0;
    border: 2px solid black;
    border-radius: 4px;
    box-sizing: border-box;
    background-color: green;
    &-action-zone {
        width: 100%;
        height: 340px;
        margin-bottom: 16px;
        border: 1px solid black;
        box-sizing: border-box;
        position: relative;
        .snake-body {
            & > span {
                width: 10px;
                height: 10px;
                background-color: black;
                border: 1px solid #fff;
                box-sizing: border-box;
                position: absolute;
            }
        }
        .snake-food{
            width: 10px;
            height: 10px;
            display: flex;
            flex-wrap: wrap;
            position: absolute;
            left: 40px;
            top: 40px;
            &-item {
                width: 4px;
                height: 4px;
                background-color: black;
                transform: rotate(45deg);
            }
        }
    }
    &-score {
        display: flex;
        justify-content: space-between;
    }
}